Removed tab breaks ingest

Details

Description

To reproduce the bug:
1. start PDF collection ingest in fresh VM
2. skip file upload in first form step
3. fill required fields and add one extra person tab
4. go to next page
5. go to previous paga
6. delete extra tab added in 3rd step from this list
7. go to next page
– there is an error (dump is down bellow)
8. try to go to the previous page
– impossible

sandbox.islandora.ca doesn't show the error but the form brakes in 8th step.